I just got an empty combo cab and was wondering what the best speaker is for it. I will be putting my Mark IV in it (provided I don't leave it in the rack after seeing that post of a freshly rackmounted Mark IV, thanks). I am wondering between the Black Shadow 90 and the Ev which would sound better as a 1x12. I have 4x12s if I need to play louder. I just haven't had a combo in ages. I had been thinking about getting a Thiele cab but came up on the combo cab. I am still looking for the older 2x12, but need some input on what would sound best in the combo. I would put a v30 in it but think it might be a little too much for the speaker if I dared to crank it. I am looking for something relatively indestructable as I never know when an urge will hit to blast the hell out of it. I might not have access to the 4x12s if I am not home and have only brought the combo somewhere.